Braid.



PATENTBD AUG 3. 0. RAHM.

, BRAID PPLICATION FILED H0114, 1905.

' 2 SHEETS-SHEET 1.

, PATENTEDAUG. 18. 1908.

R; 0. RAHM.

Emmi; APPLIGATION FILED 9w. 4, 1905.

' threads in said fabric.

UNITED STATES PniriENT OFFICE.

ROBERT C. RAIIM, OF \YYOMISSING, P \INSYLVhNIA, ASSIGNOR TO TEXTILEMACHINE WORKS, OF WYOMISSING, PENNSYLVANIA, INCORPORATED.

= 31min.

Specification of'L'etters Patent.

Patented Aug. 18, 1908.

Original application filed October 14,1904, Serial No. 228,393. Dividedand. this application filed November 4, 1905.

Pennsylvania, .have invented certain new and useful Improvements 1nBralds, of whlch the following is a specification.

My invention relates to an improved braided fabric which is made up oftwo sinndtaneously-formed braids laid one upon the other and havingtheir threads interchanged in theprocess of manufacture so as tounitethe two; a main object being to provide'various figured orembroidery effects by employing different colored carrier threads,

by introducing different colored warp threads,

and by making a plurality of turns of certain of the carriers atdetermined points in their course, inconnection with a regulatedinterchange of carriers arranged to normally traverse separate courses.

The present invention is fully described in'connection with theaccompanying drawings and the novel features are specifically pointedout in the claims; the mechanism referred to being separately describedand claimed in Patent No. 856,985, issued June 11th, 1907, 011 myapplication, Serial No. 228,393, of which the present is a divisionalapplieatiom Figure 1 IS a diagrammatic plan Viewof a braiding machineembodying my invention;

a portion thereof showing the communicating race-circle courses withswitches controlhug the earner movements therein, and the remainingportion indicating the pitch-circles of the carrier operating gears andthe acquard connectlons to the switches. Flg.

, 2 is an enlarged.sectional view showing two gears of the outer coursein mesh with two of the inner course, the section being on the line 2'-2of Fig. 1., straightened out. Fig. 3 is a diagram of the run proper.Figs. 4 and 5 show the opposite faces of a figured fabric produced bymeans-of my improved mach-- anisn n;' and Fig. 6 is an enlargeddiagrammatic view indicating the lay of the several Fig. 7 is a similarview to '1 ig. 5 indicating an effect produced where warp threads areemployed, and Fig. 8 is a diagrammatic view indicating the run of thecarriers in producing same.

Serial No. 285,821; I

The top plate 9 of a braiding machine is ordinarily provided 'withasingle race-way or course for the" bobbin carriers, formed byintersecting race-circles which are arranged concentric with ,a seriesof operating gears for the carriers. In Fig. :1 a portion of such arace-circle course is indicated at h, the race-circles of said coursebeing concentric with aseries of intermeshing operating gears 1)indicated by their pitch circles. These horn gears, as they are termed,are located between the 'top"plate g and the bottom plate is, as shownin Fig. 2, and are provided with peripherally notched disks 1) whichengage the carriers to traverse the latter in their serpentine course.

. I-nmy improved machine I provide a second outer race-circle course,arranged parallel with the "course it, and having the same number ofrace-circles, each arranged tangential to an adjoining circle of theinner courseso as-to afford communication between the two whereby thecarriers of each course may be diverted into the other. T o

regulate this interchange of car'riers,.a series of switches c c c'isprovlded between the two courses, the points of which switches areadapted to openor close such'commuifications as determined by theposition to which they are swung upon their pivotal supports: .This'osition being automatically controlled, as in icated,by-a suitablejacquard mechanismj and wires extending therefrom to the switches.

As shown inFig. 1 the parallel race-circle courses "h and m are arrangedconcentric, with the race-circle centers of both courses on the sameradial lines, but with increased race-circle diameters in the outercourse as required. The horn-gears of both courses being arrangedfor-the samenumber of carriers, it is necessary that they be rotated inequal times notwithstanding the necessary; difference in diameters. Thisis conveniently accomplished, as indicated in Figs. 1 .a11d.2, byarrangingthegear's of the inner course in mesh with each other, and eachof the outer gears in mesh only with an adjacent inner gear; the outergears, though of somewhat larger diameter, being )rovided with only thesame number of tcetli as the inner gears so as to be rotated in the sametime.

, runs beingasindieatedin Figr.

seen.- i-that *thencarrier indicated at e will he 10.: p L [cwhenwthelat'ter is'c 'setes-fshowrr; and that I the;.tur.ning of saidswitch-immed atelyafter -thepassage o'f saidcarrierewill v .Lmanner to.retain the carrier (Z {upon its "nor- IXIIIQIfLEOUI'SQS the switches cmust be kept swinging from one s1deohthe rn-apropcr t1me,:-by theacquard mechanism. 0. different colors-if the 'carrl'e'rs of the tworuns also; the" outer course is shown provided with =innerfcours'e and-one;:-and bemg of 'different colors (1 would,

on a given gear orgearfsTbefore pursuing its normal "course 'tion hasbeen thus 'rever'sedfin' order to avoid earners are traversed warp's thecarrier threadsar'e laid so as to at; any properly with the closer-.

Who ,each setof carriers isheld .to its own i course two separate braidswill be foriried,

ner of accomplishing this willb u by reference to Fig. 1, in which itwill be held- ;to: its norniatfou ter course the switch serve in likemal inner course; :Thus' in order to retain the zearrler's intheir-respectlveouter and 'run' to the other,

Theseparate braids thus produced will be of are provided withdifferently colored yarns. If the switch 0 however be-mo'ved to reversepositions to those justcons'idered then the .carrier e would be causedto pass into the theca'rrier dinto the outer for instance showas'bjlaekinwhite on the outer, and e as white {in black on the innerside of theproductywhileat tl'ie sarne time uniting the 'otherwise'independent braids in changing" of; the outer-and inner course desiredcarrier to make a plurality of turns For 'this purpose a second seriesof switchesfo e,*fa'sshown, are so arranged'as to'perrrnt a'temporaryreversal of sible, of warp threads of desired colors, and the indicatedfor instance in taneously formed braids laid any carrier movement. Inthls connection loops nadapted-to setback carriers whosemocollisions'whicliwouldotherwise result. The thesefloops by gearstwo-horn gear determined by the also made for introrlesire'djcolors-into gh the aXes of the o1? aetio jacquard; ProRHsIon duci'ngwarppthread cated'atsand i'iri Fig; '1,' around which cover or to showthem as required for different figure effects.

I I ,"iwhichif as shown, are. each 'dIlVBII by an adjacent outer-coursegear taneou'sly 4. A braided fabric madetaneously formed braids of.

It will be readily understood that the mechanism described enables avery great variety I bftfiiitiiitl effects to produced in a fab- ;ricmade up of two braids the threads of which are interchanged as stated.In Fig. 4 is shownthe inner side of a simple design of braid asalready'described; the colored porand the white portion by the whitethreads of the outer. course earriers which have fbe en' exclianged "atthe re diiirejd paints with the-inner"course threads.

lnfth'e corresponding enlargedFigf 6 "th'eflay 'of'the' severa will bereadil threads i cleafl 'shown; and it seen that the black threads lieentirely onthe top of the 'white except. at points within thefigure-design, at which points the white threads appear on top: of the)lack ones due to the described interchanging of threads, thus clearlyvornamental design and at the same time uniting the two braids in asingle fabric. The great variety of ornamental effects made posasalready stated, by the introduction making of a plurality of turns ofthe carriers at desired points, for which revision is made, will beevident tothose skiiied in the art; as v Fig' 8 where the warp threadsare brou ht the center of the figure design shown in Fi 5, upon one sideof the united double brai the run of the 'earriers around the warpthreads being indicated in the diagrammatic view Fig. 8. i

What I claim is: o 1. A braided fabriemade up of two simulone upon theother, the threads of said braids being inter.- changed at portions onlythereof to unite the two in determined design andthe remaining portionsbeing disconnected. v

2. A braided fabric made up of two simultaneously formed braids laidloosely one upon the other but having their threads interc anged atdetermined portions only in the process of manufacture to unite the twoat such portions, which the braid expose and warp threads around ortionsof the. warps and thereby form a igured surface.

3. A braided fabric made up of two simulformed braids laid loosely oneupon the other but having their threads interchanged at determinedportions only in the process of manufacture to unite the two at suchportions, thereof exposed toform. a figured surface.

differing threads one laid loosely upon the other but havin theirthreads interchanged at determined portions only in the process ofmanufacture to unite the two at figured surface.

5. A braided fabric made up of two simulsuch portions and form adeveloping the to the surfacejat threads are carried seas to and warpshaving portions up of two simultaneousl y formed braids ofklifferingthreads, In testimony whereof, I afiix my signature, one laid looselyupon the other but havin the presence of two Witnesses.

their threads interchan ed at determine portions only in the proe ess ofmanufacture i ROBERT RAHM' 5 'to unite the two at such portions andwarps having portions thereof exposed in the figured surface.

Witnesses i D. M. STEWART, W. G. STEWART.

